how to suppress new "insecure passphrase" warning

[Alan Bram]

I have been using gnupg for a few years now, with no change in the way I
invoke it. Recently (I guess my package manager updated to a new version:
2.2.23) it started injecting a warning about "insecure passphrase" and
suggesting that I ought to include a digit or special character.

I don't want to do that. I have a strong passphrase that was generated via
Diceware. It's simply a few words made of plain letters; but it's long
enough, and totally random. Stronger than a short, lame password that
someone simply appends a "1" to.

Is there a way to suppress the annoying warning?
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